副词用逗号 -ag真人试玩平台

在某些副词之后使用逗号: however, in fact, therefore, nevertheless, moreover, furthermore, still, instead, too (含义'also').

example: therefore, he didn't say a word.

如果这些副词出现在句子的中间，则用逗号括起来。

example: the thief, however, was very clever.

逗号对于以下副词是可选的: then, so, yet.

example:
 so, she entered the house.
 so she entered the house.